zad3.0

/**
*
* Solution to homework assignment S
* Introduction to programming course
* Faculty of Mathematics and Informatics of Sofia University
* Winter semester 2021/2022
*
* @author Anelia Keranova
* @idnumber 7MI0600055
* @task 3
* @compiler VC
*
**/

#include <iostream>
using namespace std;

bool space(char ch) {
	if (ch == ' ' || ch == '\t' || ch == '\0')
		return true;
	return false;
}

int strlen(char* str) {
	int counter = 0;
	while (str[counter] != '\0') {
		++counter;
	}
	return counter;
}

int evenWords(char* str) {
	int result = 0;
	int len = strlen(str);
	int counter = 0;
	for (int i = 0; i < len; i++) {
		if (!space(str[i])){
			++counter;
		}
		else {
			if (counter % 2 == 0) {
				++result;
			}
			counter = 0;
		}
	}
	return result;
}

int main() {
	char arr[] = "this is a string ";
	cout << evenWords(arr);
}